formality
accepts less, more, default, preferless, and prefermore. The prefer values fall back to the default when the target language has no formality support.
How to use it
formality is exposed by the Deepl MCP Server MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the formality tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.
Install Deepl MCP Server
claude mcp add deepl --env DEEPL_API_KEY=your-api-key -- npx -y deepl-mcp-serverOther tools in Deepl MCP Server (14)
Returns a single custom instruction belonging to a style rule.
Returns the term entries of one glossary dictionary, meaning one language pair in one direction.
Returns the same metadata as list-glossaries for a single glossary.
Lists the language codes accepted as a translation source.
Returns one style rule in full, including its configured rules and custom instructions.
Lists the language codes accepted as a translation target.
Lists the style values rephrase-text accepts.
Lists the tone values rephrase-text accepts.
Lists every glossary in the account with its id, name, dictionaries, and creation time.
Lists the style rules in the account with their id, name, language, and timestamps.
Rephrases text, optionally into another language.
takes either a single string or an array of strings. Each entry is translated or rephrased independently.
Translates a document file (PDF, DOCX, PPTX, XLSX, HTML, TXT, and more) and writes the result to disk.
Translates text into a target language.